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STMicroelectronics TS393IPT
- Part No.:
- TS393IPT
- Manufacturer:
- STMicroelectronics
- Category:
- Comparators
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TS393IPT.pdf
- Description:
- IC COMPARATOR 2 GEN PUR 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:23,841
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Product details
Overview
TS393IPT from STMicroelectronics is a micropower dual CMOS voltage comparator in TSSOP8 package, operating from 2.7 V to 16 V single supply (or ±1.35 V to ±8 V dual), with 9 µA typical supply current per comparator, 1 pA typical input bias current, and 2.5 µs typical response time at 5 mV overdrive - used in battery-powered sensor threshold detection and precision level sensing circuits.
For engineers reviewing the TS393IPT datasheet, TS393IPT pinout, TS393IPT application, or TS393IPT equivalent, key selection criteria include ultra-low quiescent current, rail-to-rail input common-mode range including ground, push-pull compatible output structure, and automotive-grade temperature range (-40 °C to +125 °C) confirmed for this specific TSSOP8 tape-and-reel variant.
Technical Context
The TS393 implements two independent high-impedance CMOS comparators with complementary P-channel and N-channel output transistors enabling push-pull operation without external pull-up resistors. Its input stage uses MOSFET differential pairs achieving 10¹² Ω typical input impedance and 1 pA input bias/offset currents.
Designed for low-power systems, it supports wide supply ranges and features input common-mode voltage extending to ground - enabling direct interfacing with sensors and ADC reference rails. Absolute maximum ratings include ±18 V differential input voltage and 150 °C junction temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply current | 9 µA per comparator typical - enables multi-year operation on coin-cell batteries in always-on monitoring nodes. |
| Input bias current | 1 pA typical - preserves signal integrity when driving high-impedance sources like photodiodes or piezoelectric sensors. |
| Response time | 2.5 µs typical at 5 mV overdrive - sufficient for slow-to-moderate speed threshold detection (e.g., battery voltage monitoring). |
| Input offset voltage | 6.5 mV max at 25 °C - defines minimum detectable voltage difference between inputs under nominal conditions. |
| Common-mode range | 0 V to VCC − 1.5 V - allows direct connection to ground-referenced signals without level-shifting circuitry. |
| Output type | CMOS push-pull - eliminates need for external pull-up resistors, reducing BOM count and power loss in active-high logic interfaces. |
Pinout & Package
TSSOP8 (Thin Shrink Small Outline Package), 8-pin, surface-mount, lead-free ECOPACK® compliant, thermal resistance RthJA = 120 °C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of comparator 1 | Accepts reference or sensed signal for comparison against non-inverting input; supports common-mode down to ground. |
| 2 | Non-inverting input of comparator 1 | Accepts variable input (e.g., sensor output); high-impedance node minimizes loading on source. |
| 3 | Output of comparator 1 | CMOS push-pull output drives logic-level loads directly; sinks up to 6 mA, sources ≥2 nA. |
| 4 | VCC− (GND) | Ground reference for both comparators and internal biasing; common return path for all signals. |
| 5 | Non-inverting input of comparator 2 | Independent second channel input; identical electrical characteristics to pin 2. |
| 6 | Inverting input of comparator 2 | Second channel reference input; pin-swappable with pin 1 for layout symmetry. |
| 7 | Output of comparator 2 | Independent push-pull output; electrically isolated from output 1, enabling dual-threshold logic generation. |
| 8 | VCC+ | Positive supply rail; supports 2.7–16 V operation; decoupling capacitor recommended near this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low supply current | 9 µA/comparator enables >10-year battery life in wireless sensor nodes powered by CR2032 cells. |
| Rail-to-rail input capability | Input common-mode range includes ground and extends to within 1.5 V of VCC+, simplifying interface with single-supply sensors. |
| High input impedance | 10¹² Ω typical prevents loading of high-Z sources such as thermistors, RTDs, or capacitive touch electrodes. |
| Push-pull CMOS outputs | Eliminates external pull-up resistors, reducing board space, power dissipation, and EMI from resistor-capacitor time constants. |
| Automotive temperature grade | -40 °C to +125 °C operating range qualified per AEC-Q100 - suitable for engine bay and ADAS subsystem monitoring. |
Applications
| Battery Voltage Monitoring | Over-Temperature Protection |
|---|---|
|
Use Scenario: Detecting low-voltage cutoff in portable medical devices using lithium coin cells. IC Role / Device Role / Timing Role: Dual comparator monitors battery voltage against two thresholds (e.g., 2.8 V warning, 2.5 V shutdown) with independent outputs. Use Value: 9 µA total quiescent current ensures >5 years runtime on a 220 mAh CR2032 cell during standby. |
Use Scenario: Thermal runaway detection in Li-ion battery packs using NTC thermistors. IC Role / Device Role / Timing Role: One comparator compares thermistor divider voltage to fixed reference; second channel provides hysteresis or fault latching. Use Value: 1 pA input bias avoids self-heating errors in high-resistance NTC networks, preserving measurement accuracy. |
| Smoke Detector Threshold Sensing | Industrial Sensor Interface |
|
Use Scenario: Optical smoke chamber signal conditioning with dual-level alarm activation. IC Role / Device Role / Timing Role: First comparator triggers pre-alarm at moderate smoke density; second triggers full alarm at critical density. Use Value: Push-pull outputs drive buzzer and LED directly without discrete transistors, reducing component count and failure points. |
Use Scenario: Interfacing 4–20 mA loop-powered pressure transmitters to microcontroller GPIOs. IC Role / Device Role / Timing Role: Comparator converts analog current loop output into digital presence/absence or fault-state signals. Use Value: Input common-mode range including ground allows direct connection to shunt-based current sensing without level shifters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual micropower comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM393DR | Bipolar input stage; 10× higher supply current (100 µA/comparator), 25 nA input bias current, open-collector output requiring pull-up. | Lacks rail-to-rail input; unsuitable for ground-referenced sensors without level shifting; higher power limits battery life. | Select only if legacy compatibility or cost sensitivity outweighs power and interface constraints. |
| TS3702IDT | Same CMOS architecture; identical 9 µA supply current and 1 pA input bias, but push-pull output and faster 1.2 µs response at 10 mV overdrive. | Optimized for higher-speed threshold detection; pinout differs (SO-8 only), not pin-compatible with TS393IPT. | Prefer for new designs needing sub-2 µs response while retaining micropower operation and ground-sensing capability. |
Compared with LM393DR and TS3702IDT, TS393IPT uniquely combines TSSOP8 packaging, AEC-Q100 qualification, ground-sensing inputs, and push-pull outputs at 9 µA - making it optimal for space-constrained, automotive-qualified, ultra-low-power dual-threshold detection where pin compatibility with legacy SO-8 variants is not required.
Availability
TS393IPT is available at Aetrix Electronics and suitable for battery-powered IoT sensors, automotive cabin climate controllers, and industrial safety interlocks requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TS393IPT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The TS393 belongs to ST's precision analog comparators product line, engineered specifically for ultra-low-power, high-input-impedance sensing applications in harsh environments - emphasizing longevity, reliability, and ground-referenced signal integrity.
FAQ
Is TS393IPT pin-compatible with LM393?
Yes, TS393IPT is functionally and pin-to-pin compatible with the LM393 in standard dual-comparator configurations. Pin 1–3 and 5–7 map identically: inverting/non-inverting inputs and outputs for both channels; pins 4 and 8 are GND and VCC+. However, TS393IPT uses push-pull outputs versus LM393's open-collector, eliminating need for external pull-ups.
What is the maximum input voltage allowed when VCC+ = 3.3 V?
Per absolute maximum ratings, the input voltage (VIN) may reach up to 18 V regardless of supply voltage, provided the common-mode voltage [VICM = (VIN+ + VIN−)/2] stays within 0 V to VCC+ − 1.5 V. So at 3.3 V supply, inputs can safely exceed rails - e.g., 5 V sensor signals - as long as differential voltage remains ≤±18 V and ESD diode current is limited to 50 mA.
Does TS393IPT support dual-supply operation?
Yes, TS393IPT supports dual supplies from ±1.35 V to ±8 V. Pin 4 serves as VCC− (negative rail), and pin 8 as VCC+ (positive rail). Input common-mode range extends from VCC− to VCC+ − 1.5 V, allowing use with split-rail op-amp stages or bipolar sensor interfaces without level translation.
How does TS393IPT differ from TS393IDT?
TS393IPT uses TSSOP8 packaging (tape-and-reel), while TS393IDT uses SO-8 packaging (tape-and-reel). Both share identical electrical specifications, -40 °C to +125 °C temperature grade, and AEC-Q100 qualification. TSSOP8 offers 30% smaller footprint and lower thermal resistance (RthJA = 120 °C/W vs. 125 °C/W for SO-8), preferred for space-constrained automotive modules.
TS393IPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 2
- Output Type:
- CMOS, Open-Drain
- Voltage - Supply, Single/Dual (±):
- 2.7V ~ 16V, ±1.35V ~ 8V
- :
- 5mV @ 10V
- Voltage - Input Offset (Max):
- 1pA @ 5V
- Current - Input Bias (Max):
- 20mA
- Current - Output (Typ):
- 25µA
- Current - Quiescent (Max):
- 71dB CMRR
- CMRR, PSRR (Typ):
- -
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 125°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 8-TSSOP
TS393IPT FAQ
1.How can I place an order for TS393IPT through Aetrix?
Please submit a Request for Quotation (RFQ) for TS393IPT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TS393IPT reliable?
The price and inventory of TS393IPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TS393IPT is usually 5 days.
3.What payment methods are accepted for TS393IPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TS393IPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TS393IPT?
TS393IPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TS393IPT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TS393IPT?
For technical support, including TS393IPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TS393IPT requirements.
6.How does Aetrix verify that TS393IPT is sourced from the original manufacturer or authorized distributors?
All TS393IPT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TS393IPT meets industry standards.
7.What is the process for return or replacement of TS393IPT?
All TS393IPT units undergo pre-shipment inspection (PSI). If there is an issue with TS393IPT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TS393IPT part is unused and in its original packaging.
Return procedure for TS393IPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TS393IPT Tags
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